Question

if (-7,5) is on the terminal side of theta, then what is sin(theta), sec(theta) and tan(theta)?

Answer 1

The first thing you need to calculate is c in the figure.
You need the length of the hypotenuse for the sine and cosine.

Answer 2

i got 8.6

Answer 3

i don't know what to do next

Answer 4

Good. \(c = \sqrt{74} \approx 8.6\)

Answer 5

Now you need to remember what the sine, cosine and tangent ratios are.
Did you ever hear of SOH-CAH-TOA?

Answer 6

yes.

Answer 7

is the 7 supposed to be negative? and would sin= 5/sqrt74 ?